Answer:
First one
Explanation:
Germen Shepards are the best :)
<u>Colony-stimulating factors (CSF)</u> class of chemical messenger facilitates white blood cell formation in bone marrow.
Colony-stimulating factors (CSF), they are intriguing substances that control the growth of granulocytes and macrophages, the immune cells significantly responsible for protecting the body against infections, as well as some of their functions.
Granulocytes- The three types of white blood cells that make up the neutrophil, basophil, and eosinophil are those with secretory granules in their cytoplasm.
Macrophages- The white blood cell that encircles infections, destroys them, purges the body of dead cells, and stimulates the immune system.
Immune Cells- As immune cells develop from stem cells in the bone marrow, they create several types of white blood cells.
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The bases are at the interior of the double helix and are neatly stacked.
The phosphate groups groups are at the exterior of the DNA molecule
The sugar groups are at the interior of the DNA molecule
Answer:
Stomata opens to intake carbon dioxide in the presence of light there by allowing the process of photosynthesis during the day time.
Explanation:
The gaurd cell of the stomata play an important role in regulating the photosynthesis. During the day time, the stomata is open which allows intake of carbon dioxide from atmosphere. Carbon dioxide is very essential for the process of photosynthesis. Thus, during day time when stomata is open photosynthesis takes place while during night time when stomata is closed photosynthesis do not occur. Also the stomata regulate the loss of water from the leaves thereby ensuring availability of sufficient water molecules at the time of photosynthesis.
